Research on privacy protection mechanism of cloud database based on decomposition and encryption

Research on privacy protection mechanism of cloud database based on decomposition and encryption

Lie 0, Chen Yue, Tan Peng Xu, Yanggang, Li Wenjun

In view of the tenant's demand for data privacy protection under Cloud Database service mode, this paper proposes a cloud database privacy protection mechanism based on decomposition and encryption. Tenants define privacy constraints based on their privacy requirements, the Trusted Data Privacy protection module of the cloud service provider platform completes the least encryption attribute decomposition according to the privacy constraint, and realizes the data privacy protection by encrypting the data value of some attributes in the decomposition result, thus establishing the privacy protection model of cloud database based on decomposition and encryption. The privacy protection model is extended to prevent data distribution privacy leakage, reduce the service provider platform load and query the sortable attributes.

Keywords: attribute decomposition; Encryption; privacy protection; Cloud

Temp_12090709538616.pdf